It's possible to connect an oscilloscope probe via the BNC socket and up to six logic and a second analog channel and/or waveform generator and clock outputs.

Any passive probe with 1:1, 10:1 or other attenuation ratio can be used. It supports active differential, current or any other type of probe which is BNC terminated and designed for a standard oscilloscope.

It allows the use of BNC coaxial cables for connection with other lab equipment and the pin-header behind the BNC socket can be used to connect other signals.

Tom Thumb comes into its own when building large but compact automated test or acquisition systems.

In this case it allows the connection of up to 16 high speed analog signals which can be captured. These signals can also be captured as logic signals with adjustable switching level comparators simultaneously.

Each signal can be acquired on its own at a pre-programmed sample rate to its own high speed capture buffer.

Signal acquisition can occur independently or together, synchronised via one of the logic signal on each channel via a trigger bus connected behind the front panel.

BitScope Micro itself is only 20cm wide. It's ideal to use as a single channel slice in a larger test and measurement system. We designed Tom Thumb to make it easy to build very low cost large scale systems with BNC connectivity using Raspberry Pi (and its four USB ports) together with BitScope Micro.

We will be publishing some designs and new software showing how to implement network connected multi-channel test, measurement and data acquisition systems using BitScope Micro and Raspberry Pi. We also have some smaller designs for desktop use for applications where more than 2 analog channels are required simultaneously. Stay tuned!